A lifelong student of the occult and member of Fraternitas Saturni, under the magical name of Master Pacitius, Grau was able to imbue Nosferatu with hermetic and mystical undertones.
Since Nosferatu was a loose and unauthorized translation of Bram Stoker's Dracula Prana had to declare bankruptcy in order to evade infringement lawsuits.
Grau contributed fascinating, if mathematically obscure, articles on sacred geometry to Saturn Gnosis, the periodical of the Fraternitas Saturni (five issues between July 1928 and March 1930).
After the war, he returned to Germany and pursued a career in commercial art and lived in the Alpine village of Bayrischzell, Upper Bavaria, until his death in 1971.
Albin Grau was one of the main characters in the fictionalized movie account of the filming of Nosferatu, titled Shadow of the Vampire (2000), directed by American filmmaker E. Elias Merhige.